Quick start-stop device for starting emergency diesel engine by using high-pressure compressed air

The invention provides a quick start-stop device for starting an emergency diesel engine by using high-pressure compressed air. The quick start-stop device comprises a main pipeline, and a maintenance pipeline and a standby pipeline which are connected with the main pipeline in parallel, the main pipeline comprises a shore end air compressor, a high-pressure oil-gas stage device, a high-pressure gas storage tank, a high-pressure decompression device, a high-pressure air energy accumulator and a diesel engine which are connected in sequence; the maintenance pipeline comprises a maintenance pipeline body, an eighth high-pressure switch valve and a sixth high-pressure switch valve which are sequentially connected, the maintenance pipeline body is connected to a road between the high-pressure decompression device and the high-pressure air energy accumulator, and the sixth high-pressure switch valve is connected with the high-pressure air storage tank. The high-pressure oil-gas separation device is additionally ar